Steaming-oven or cooking apparatus.



No. 862,443. PATBNTBD AUG. 6, 1907.

STEAMING OVEN 0R COOKING APPARATUS. APELIOATION FILED sBPT.1s.19o5.

z'sHEETs-sHEBT 1.

ff/126.55m.' f 1f 7a 22mm.'

PATENTED AUG. 6, 1907. J. P. BROK.

STEAMING OVEN OB. COOKING APPARATUS 2 SHEETS-SHEET 2.

APPLIOATION FILED SEPT.

l the same being to protect the bottom of such water' JEAN PIERRE BRUCE, OE LUXEMBURG, NETHERLANDS. i

sTEAMING-ovEN 0R COOKING APPARATUS.

specification' of Letters resent.

y Patented Aug. 6, 1907,

" Applic'astn sled septemttr 13,19o5.'seria1No. 278355.. p

To all whom it may concern:

4Be it known that I, .I EAN PIERRE BRUCK, administrator-of penitentiary, -a subject of the Grand Duchy of` Luxemburg, residing in Grund, Munster street, Lu-x'emburg, Netherlands, have invented certain new and useful Improvements in Staming- Ovens or Cooking Apparatus, of which the following is a specification.

Thefpresent invention relates to' an improved steaming oven or cooking apparatus particularly adapted for use in prisons, barracks and like places where large quantities of food are to be prepared at one time.

In order to obtain a rapid, uniform and thorough steaming Vofthe material, it is essential that such material be spread out in comparatively thin layers sopthat ,the steam may surround the mass of material uniformly and thus act on allr parts effectively and quickly'.

' To this end the invention comprises a suitably shaped oven or steam tight casing provided with a door or doors in one of the vertical walls through which the apparatus may be filled. The inside oi the ,oven is preferably provided. with a seriesr of brackets upon which aseries of drawers, boxes or`the like having perforated walls may be placed and drawn out independently of each other. By this means, it is possible to introduce into the apparatus substances which require steaming |for different lengths of time. In order to minimize the necessity for handling the steamingmatcrial the, drawers or boxes may be filled with smaller boxes, also having perforated walls, the size of such boxes being so arranged that each box contains la deined portion, and if desired these boxes may be employed for serving the food to the persons for whom it is intended.

As it is necessary vto dry certainmaterials, such as potatoes, after the steaming is finished, a damper or plate is provided which may be 'slid between the bottom of the water chamber andthe grate, the'object of chamber from burning after the water has been run off to allow the material to dry.J In order to permit of the steam remainingin the oven being drawn off prior to drying, a steam outlet is provided at the top of the oven and anlair inlet near the base thereof. yIf desired the exhaust steamsmay be utilized for warming water by (discharging it into aseparate chamber communicating withthe oven, meansbeing provided Afor opening and closing such communication. A water spray is arranged in 'such-chamber, the water therefrom being warmed by the steam suitable meansare provided for drawing off the water.Y p

The invention will now be more particularly describedwith reference-to the accompanying drawings in which:

Figure 1 isa perspective view of one form of the ap- 'i paratus, with the door half open. Fig. 2 is a section along the line A-B of Fig. 3. Fig. 3 is a section along the line C--D of Fig. 2, and Fig. 4 represents one ofthe drawers or boxes for holding the material to be steamed.

, The apparatus which, as can be seen from Fig. 1, is in the form of an oven, is provided with internal brackets a upon which boxes b adapted to hold the material to be steamed are slidably supported. These boxes b can be drawn out of the apparatus separately when the door c has been opened. Water isladmitted into the bottom vpart 'of the apparatus by means of a pipe d (Fig. 2), and

can be drawn off through a pipe g, the level of the water inthe apparatus being shown by the gage glass f. Below the, bottom h of the water chamber is a grate 1I, the heat and gases from which first strike the bottom h, then flow into ajacket centirely surrounding the apparatus and escape into-a chimney l in the upper part ofthe oven.

yThence it -will be seen that the entire space surrounding erated from the water in the lbottom chamber acts directly on the material in the perforated drawers and boxes and steams the same. The walls of the apparatus are preferably double or multiple, so that in addition to the fire jacket It, there is a space lc which may be filled with non-conducting material to prevent. loss of heat by radiation. In addition to the parts mentioned, the apparatus may be provided with fittings, such as a thermometer m, safety valve n pressure gage o and signal whistle @which blows when the steam pressure in the apparatus gets too high. i

Below the bottom h of the water chamber is placed a and the water' has been' run off through the pipe g is pushed in, in order that the drying of the material mayy be effected by dry heat, the damper q then protecting the bottom h from burning.

In order to draw off the steam during the dry heating process, a closable upper opening 1", connecting the steaming chamber with the chimney l, is provided, as also a closable air-inlet s (see Fig. 1) below. .As above mentioned the exhaust steam may be utilized for warming water, for which purpose4 a chamber u is provided shown in the present case behind the steaming chamber, with which it communicates through a closable opening t. This chamber contains a water jet w supplied by a pipe 'v and is provided with a pipe x 4for drawing offthe heated water. When communication is established between the steaming chamber and the chamber u by drawing the damper y, which closesthe opening t and when at the same time the air inlet s in the steaming chamber is opened and the water passing through the jet w' is turned on, such water issuing from the jet draws the steam, so that the latter passes into the chamber u and warms the water therein.

. same is 'to be performed, I declare that ywhat I claimis:

' 1, I n an apparatus of the class described, an oven having a fire grate and a water chamberLa damper or plate arranged between the fire grate and water chamber', the oven being provided with a steam outlet at the top and with an air ilet at the bottom thereof. v

2.v In an apparatus of the class described having drawers 01' boxes divided into.compartments by a, series of perforated boxcs, the combination of a casing provided with a chamber around the walls forming a ilue,'a chamber around the due chamber filled with' non-conducting material. a fire grate arranged beneath the casing, a waterchamber arranged beneath the oven, a flue member conducting heat from the fire grate to the b ottom of. the water' chamber and communicating with the due chamber of the oven, a damper arranged between the fire grate `and the water cham-- ber, the oven having a steam outlet at the top and air inlet at the bottom thereof, and a chamber communicating with the oven into which the exhaust steam is allowed to pass to heat water' passing into such chamber in the l format a y also having an outlet at its lowerpart, a chamber arranged below said vessel, a furnace opening into said chamber 'at its middle portion, walls providing a chamber at the sides hack and top of the receptacle and communicating with the chamber below the water vessel, the'top Wall of the'apparatus having an outlet for smoke, said water vessel having an air inlet below the drawers, means for closing said inlet, a Avalve inletat the top of the vessel having a drawer,

and a reduced chamber-at the bottom of the water vessel above ythe furnace, said chamber having a movable bottom.v

JEAN IPIERRE'. BRUCK.

Witnesses:

CHARLES DUMONT, DESIRE DENU'rH. 

